Ash on "[Plugin: WP Super Cache] [Bug] Updating settings in advanced page resets scheduled to "Clock""

To duplicate the issue.

1. Go to advanced page change the Expiry Time & Garbage Collection to Timer and change the default values and click 'Change Expiration'.

2. Change any of the settings in the top section.
3. Click 'Update Status'
4. You will notice that the changes made in step #1 are reset

https://wordpress.org/plugins/wp-super-cache/